blies, subassemblies, and modules with the next higher assembly. End item group number shall be "00."
b Column 2, Component/Assembly Column 2 contains the names of components, assemblies, subassemblies, and
modules for which maintenance is authorized
c. Column 3, Maintenance Function Column 3 lists the functions to be performed on the item listed in Column 2.
(For a detailed explanation of these functions, see paragraph B-2 )
d. Column 4, Maintenance Level Column 4 specifies, by the listing of a work time figure in the appropriate
subcolumn(s), the level of maintenance authorized to perform the function listed in Column 3 This figure represents the
active time required to perform that maintenance function at the indicated level of maintenance If the number or
complexity of the tasks within the listed maintenance function vary at different maintenance levels, appropriate work time
figures will be shown for each level. The work time figure represents the average time required to restore an item
(assembly, subassembly, component, module, end item, or system) to a serviceable condition under typical field
operating conditions. This time includes preparation time (including any necessary disassembly/assembly time),
troubleshooting/fault location time, and quality assurance/quality control time in addition to the time required to perform
the specific tasks identified for the maintenance functions authorized in the Maintenance Allocation Chart. The symbol
designations for the various maintenance levels are as follows.
Operator or Crew
Direct Support Maintenance
General Support Maintenance
e. Column 5, Tools and Equipment Column 5 specifies, by code, those common tool sets (not individual tools) and
special tools, TMDE, and support equipment required to perform the designated function
f Column 6, Remarks This column shall, when applicable, contain a letter code, in alphabetic order, which shall be
keyed to the remarks contained in Section IV.
B-4. EXPLANATION OF COLUMNS IN
TOOL AND TEST EQUIPMENT REQUIRE-
MENTS, SECTION III.
a Column 1, Tool or Test Equipment Reference
Code The tool and test equipment reference code correlates with a code used in the MAC, Section II, Column 5
b Column 2, Maintenance Level The lowest level of maintenance authorized to use the tool or test equipment.
c Column 3, Nomenclature Name or identification of the tool or test equipment
d Column 4, National/NATO Stock Number The National or NATO Stock Number of the tool or test equipment.
e Column 5, Tool Number The manufacturer's part number
B-5. EXPLANATION OF COLUMNS IN
REMARKS, SECTION IV.
a. Column 1, Reference Code The code recorded in Column 6, Section II
b. Column 2, Remarks This column lists information pertinent to the maintenance function being performed as
indicated in the MAC, Section II.